Rice husk ash (RHA) is an agricultural residue and has shown great potential for soil stabilization. However. the research on the utilization of RHA for soft soil improvement using cement deep mixing method is still limited and the efficiency of using different RHA types for soil improvement needs to be clarified. In this study. https://www.roneverhart.com/Jaakaapin-raikastin-Fummom-InnovaGoods/